hook.Add("ScalePlayerDamage","t",function ( ply, hitgroup, dmginfo )
	print("HOOK ScalePlayerDamage - Damage: " .. dmginfo:GetDamage())
end)

hook.Add("EntityTakeDamage","t",function ( ent, inflictor, attacker, amount,dmginfo)
	print("HOOK EntityTakeDamage - Damage: " .. amount)
end)

local GM = GAMEMODE

function GM:ScalePlayerDamage( ply, hitgroup, dmginfo )
	print("GAMEMODE BEFORE ScalePlayerDamage - Damage: " .. dmginfo:GetDamage())

	// More damage if we're shot in the head
	 if ( hitgroup == HITGROUP_HEAD ) then

		dmginfo:ScaleDamage( 3 )

	 end

	// Less damage if we're shot in the arms or legs
	if ( hitgroup == HITGROUP_LEFTARM ||
		 hitgroup == HITGROUP_RIGHTARM ||
		 hitgroup == HITGROUP_LEFTLEG ||
		 hitgroup == HITGROUP_RIGHTLEG ||
		 hitgroup == HITGROUP_GEAR ) 

		dmginfo:ScaleDamage( 0.5 )

	 end

	print("GAMEMODE AFTER ScalePlayerDamage - Damage: " .. dmginfo:GetDamage())
end

function GM:EntityTakeDamage( ent, inflictor, attacker, amount, dmginfo )
	print("GAMEMODE EntityTakeDamage - Damage: " .. dmginfo:GetDamage())
end